Lemont, IL Weather - Forecast & Monthly Averages

TEMPERATURE	57
HUMIDITY	38
PRESSURE	102640
WIND COND.	90 13

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Weather Quick Facts

The highest monthly average temperature in Lemont for July is 73.4 degrees
The lowest monthly average temperature in Lemont for January is 24.4 degrees
The most monthly precipitation in Lemont occurs in August with 7.7 inches
The air quality index in Lemont is 31% worse than the national average
The pollution index in Lemont is 43% better than the national average

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Lemont Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	17°F	32°F	24°F	3.1"
February	18°F	34°F	26°F	3.0"
March	31°F	49°F	39°F	5.2"
April	40°F	62°F	50°F	4.8"
May	51°F	73°F	61°F	5.9"
June	60°F	82°F	70°F	6.7"
July	64°F	84°F	73°F	4.1"
August	62°F	82°F	71°F	7.7"
September	55°F	76°F	65°F	3.2"
October	44°F	64°F	53°F	7.3"
November	33°F	50°F	41°F	3.9"
December	22°F	36°F	29°F	3.7"

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Lemont air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Lemont	Illinois	National
Air quality index	55	41	42
Pollution index	1,558,070	3,148,694	2,726,193

Lemont air quality information

Measurement	Total
Days measured	365
Days with good air quality	121
Days with moderate air quality	227
Days w/ poor A.Q. for sensitive groups	16
Days with unhealthy air quality	1

Lemont air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.010%
Carbon Tetrachloride	0.070%
Lead	0.090%
Mercury	0.010%

Average monthly Lemont temperature with heat index

Lemont monthly precipitation with daily maximum

Lemont monthly snow depth with daily maximum

Lemont monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Shorewood, IL	17,303	0	100.0%
Bedford Park, IL	669	55	10.0%
Cicero, IL	81,471	55	10.0%
Country Club Hills, IL	16,564	55	10.0%
Richton Park, IL	13,381	55	10.0%
Lemont, IL	17,131	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Ashwaubenon, WI	17,130	36	28.0%
Myrtle Grove, FL	17,140	41	18.0%
Lebanon, OR	17,144	28	44.0%
Springfield, TN	17,147	45	10.0%
Massapequa Park, NY	17,152	51	2.0%
Lemont, IL	17,131	55	10.0%

Source: The Lemont, IL weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.